ares_free_hostent(NULL) should be a noop

diff --git a/ares_free_hostent.c b/ares_free_hostent.c
index b124560d86a1b7522e0de2c7cb59964f1ce16982..349d379af3a0609c259168b1d3cb1b62d8a4c65d 100644 (file)
--- a/ares_free_hostent.c
+++ b/ares_free_hostent.c
@@ -28,6 +28,9 @@ void ares_free_hostent(struct hostent *host)
 {
   char **p;
 
+  if (!host)
+    return;
+
   free((char *)(host->h_name));
   for (p = host->h_aliases; *p; p++)
     free(*p);